dog parks in Toronto?

My dog goes to socialization once a week.  A professional dog walker takes him on a run to an area by Sunnybrook Hospital.  I have never seen the area, but I know there is a gate and it is approved for dog runs.  Don't think there is swimming though - while my white dog is extremely dirty after his run, he isn't totally soaking - and he has a double undercoat.  You are in North York, I live in East York, but used to live closer to Leaside Animal Clinic - my vets since 1981 so we still go there - and behind the Clinic - entrance through same door is a Groomer who sells top quality dog food, and all necessary dog accessories - leashes, harnesses, toys you name it.  It is called Tails Up - [linkhttp://www.tailsup.com]www.tailsup.com[/link].  We are one stop shoppers and dog walker also boards dogs in a home environment.